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From: Nikanth Karthikesan <knikanth@suse.de>
Subject: [PATCH] Document the new Anonymous field in smaps.
Date: Thu, 16 Sep 2010 11:34:59 +0530
References: <AANLkTini3k1hK-9RM6io0mOf4VoDzGpbUEpiv=WHfhEW@mail.gmail.com> <201009160856.25923.knikanth@suse.de> <20100916125147.CA08.A69D9226@jp.fujitsu.com>
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To: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>, Matt Mackall <mpm@selenic.com>, Richard Guenther <rguenther@suse.de>, Balbir Singh <balbir@linux.vnet.ibm.com>, linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>, Michael Matz <matz@novell.com>, linux-kernel@vger.kernel.org
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Sorry, I missed to add documentation, when I sent the patch. This depends on
the patch titled, "[PATCH] Export amount of anonymous memory in a mapping v=
ia
smaps".

Thanks
Nikanth


Document the new Anonymous field in smaps.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>

=2D--

diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems=
/proc.txt
index a6aca87..75c7368 100644
=2D-- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -370,6 +370,7 @@ Shared_Dirty:          0 kB
 Private_Clean:         0 kB
 Private_Dirty:         0 kB
 Referenced:          892 kB
+Anonymous:             0 kB
 Swap:                  0 kB
 KernelPageSize:        4 kB
 MMUPageSize:           4 kB
@@ -380,7 +381,10 @@ the amount of the mapping that is currently resident i=
n RAM, the "proportional
 set size=E2=80=9D (divide each shared page by the number of processes shar=
ing it), the
 number of clean and dirty shared pages in the mapping, and the number of c=
lean
 and dirty private pages in the mapping.  The "Referenced" indicates the am=
ount
=2Dof memory currently marked as referenced or accessed.
+of memory currently marked as referenced or accessed. The "Anonymous" shows
+the amount of mapping that is not associated with a file. Even the private
+pages in a mapping associated with a file, would become anonymous, when th=
ey
+are modified.
=20
 This file is only present if the CONFIG_MMU kernel configuration option is
 enabled.

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